fix: harden Structural S/R after OHLCV writes and surface cleanup failures

Honor custom S/R tolerance as a transient detect, refresh levels after OHLCV
mutations without failing committed price writes, report per-ticker S/R
rebuild failures from admin cleanup, and warn in the admin UI when refresh is partial.

app/services/price_service.py

@@ -1,5 +1,8 @@
 """Price Store service: upsert and query OHLCV records."""
 
+from __future__ import annotations
+
+import logging
 from datetime import date, datetime
 
 from sqlalchemy import select
@@ -10,6 +13,8 @@ from app.exceptions import NotFoundError, ValidationError
 from app.models.ohlcv import OHLCVRecord
 from app.models.ticker import Ticker
 
+logger = logging.getLogger(__name__)
+
 
 async def _get_ticker(db: AsyncSession, symbol: str) -> Ticker:
     """Look up a ticker by symbol. Raises NotFoundError if missing."""
@@ -44,11 +49,22 @@ async def upsert_ohlcv(
     low: float,
     close: float,
     volume: int,
+    *,
+    refresh_sr: bool = True,
 ) -> OHLCVRecord:
     """Insert or update an OHLCV record for (ticker, date).
 
     Validates business rules, resolves ticker, then uses
     ON CONFLICT DO UPDATE on the (ticker_id, date) unique constraint.
+
+    ``refresh_sr`` (default True) recalculates persisted Structural S/R after
+    the write so chart levels stay current. Batch ingestion passes
+    ``refresh_sr=False`` and refreshes once at the end of the ticker batch.
+
+    The OHLCV commit is authoritative: if S/R rebuild fails after a successful
+    price write, the error is logged, the session is rolled back to clear
+    poison, and the upsert still returns the persisted bar (caller can retry
+    S/R via the scanner/ingestion pipeline).
     """
     _validate_ohlcv(high, low, open_, close, volume, record_date)
     ticker = await _get_ticker(db, symbol)
@@ -84,9 +100,32 @@ async def upsert_ohlcv(
 
     indicator_cache.invalidate_ticker(ticker.symbol)
 
+    if refresh_sr:
+        await _refresh_structural_sr_best_effort(db, ticker.symbol)
+
     return record
 
 
+async def _refresh_structural_sr_best_effort(db: AsyncSession, symbol: str) -> bool:
+    """Rebuild Structural S/R; never fail a successful OHLCV write.
+
+    Returns True on success. On failure rolls the session back so a later
+    operation on the same session is not poisoned by the failed unit of work.
+    """
+    from app.services.sr_service import recalculate_sr_levels
+
+    try:
+        await recalculate_sr_levels(db, symbol)
+        return True
+    except Exception:
+        logger.exception("Structural S/R refresh failed for %s after OHLCV write", symbol)
+        try:
+            await db.rollback()
+        except Exception:
+            logger.exception("Session rollback after S/R failure also failed for %s", symbol)
+        return False
+
+
 async def query_ohlcv(
     db: AsyncSession,
     symbol: str,